/*
 * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.bpmn.model;

import com.fasterxml.jackson.annotation.JsonIgnore;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.collections4.CollectionUtils;

public abstract class FlowNode extends FlowElement {

    protected boolean asynchronous;
    protected boolean notExclusive;

    protected List<SequenceFlow> incomingFlows = new ArrayList<SequenceFlow>();
    protected List<SequenceFlow> outgoingFlows = new ArrayList<SequenceFlow>();

    @JsonIgnore
    protected Object behavior;

    public FlowNode() {}

    public boolean isAsynchronous() {
        return asynchronous;
    }

    public void setAsynchronous(boolean asynchronous) {
        this.asynchronous = asynchronous;
    }

    public boolean isExclusive() {
        return !notExclusive;
    }

    public void setExclusive(boolean exclusive) {
        this.notExclusive = !exclusive;
    }

    public boolean isNotExclusive() {
        return notExclusive;
    }

    public void setNotExclusive(boolean notExclusive) {
        this.notExclusive = notExclusive;
    }

    public Object getBehavior() {
        return behavior;
    }

    public void setBehavior(Object behavior) {
        this.behavior = behavior;
    }

    public List<SequenceFlow> getIncomingFlows() {
        return incomingFlows;
    }

    public void setIncomingFlows(List<SequenceFlow> incomingFlows) {
        this.incomingFlows = incomingFlows;
    }

    public List<SequenceFlow> getOutgoingFlows() {
        return outgoingFlows;
    }

    public void setOutgoingFlows(List<SequenceFlow> outgoingFlows) {
        this.outgoingFlows = outgoingFlows;
    }

    public void setValues(FlowNode otherNode) {
        super.setValues(otherNode);
        setAsynchronous(otherNode.isAsynchronous());
        setNotExclusive(otherNode.isNotExclusive());
    }

    public boolean hasIncomingFlows() {
        return (CollectionUtils.isNotEmpty(this.incomingFlows));
    }

    public boolean hasOutgoingFlows() {
        return (CollectionUtils.isNotEmpty(this.outgoingFlows));
    }

    public boolean isLinkCatchEvent() {
        if (this instanceof IntermediateCatchEvent intermediateCatchEvent) {
            return intermediateCatchEvent.isLinkEvent();
        }
        return false;
    }

    public boolean isLinkThrowEvent() {
        if (this instanceof ThrowEvent throwEvent) {
            return throwEvent.isLinkEvent();
        }
        return false;
    }

    public boolean isInitialFlowNode() {
        return (
            CollectionUtils.isEmpty(this.getIncomingFlows()) && this.getSubProcess() == null && !this.isLinkCatchEvent()
        );
    }
}
